虚拟宇宙里的暗物质
2020年10月25日 Dark Matter in a Simulated Universe Illustration Credit & Copyright: Tom Abel & Ralf Kaehler (KIPAC, SL…
哈勃拍摄了一个特殊的恒星苗圃
This image, taken with the NASA/ESA Hubble Space Telescope, depicts a special class of star-forming nursery known as Free-flo…